Fashion Taste Before and After Break Up's

Before the Breakup: Drew Barrymore Looks Dowdy

At the Golden Globes in 2006, Drew Barrymore looked frumpy in a see-through green dress, styleless hair and washed-out makeup.

After the Breakup: Drew Barrymore is Smokin'!

Drew split with the Strokes drummer Fabrizio Moretti early in 2007 After 4 1/2 years of dating. When she surfaced in February '07 to promote "Music and Lyrics" she appeared in a slew of great designer gowns, most notably this goddess gown from Donna Karan paired with a Stephen Dweck necklace. Her hair is sleek, and her makeup -- while exaggerated for the red carpet -- gives her a polished, grown-up look.

Before the Breakup: Reese Witherspoon is Demure

She never really looked bad before her breakup, but Reese Witherspoon had gotten into the rut of wearing sweet, vintage styles.

After the Breakup: Reese Witherspoon Shines

Reese Witherspoon's 7-year marriage to actor Ryane Phillippe ended in '06, but her style took on new life. Appearing at the Golden Globes in early '07, Reese Witherspoon wore a look-at-me yellow Nina Ricci dress. Her sexy new banged haircut looked fresh and modern; it was a departure from her usual sweet, girl-next-door image.

Before the Breakup: Cameron Diaz Caz for Premieres

Back in '04, Cameron Diaz dressed down (waaaay down) to promote "Shrek 2."

After the Breakup: Cameron Diaz Glam for Premieres

You have to admire Cameron Diaz for being able to travel the world and do premieres for "Shrek 3" with ex-boyfriend (of almost 4 years) Justin Timberlake. At least the famously casual actress did it in true eat-your-heart-out style with knockout dresses along the tour, including this black Chanel dress.